Ignition coil and lick switch



y 1930- I v H. E. NORVIEL 1,759,462

IGNITION COIL AND LOCK SWITCH Original Filed Aug. 21 1926 Patented May 20, 1930 UNITED STATES PATENT OFFICE.

HARRY E. NOBVIEL, F ANDERSON, INDIANA, ASSIGNOR TO DELCO-REMY CORPORA- TION, 0F DAYTON, 01-110, A. CORPORATION OF DELAWARE IGNITION COIL AND LOCK SWITCH Original application filed August 21, 1928, Serial No. 130,615. Divided and is application filed April 12, 1927, Serial No. 183,144. Renewed ()ctcber 2, 1929.

This invention relates to controls and locks therefor, and particularly to apparatus means for automatically moving the opersting member or the controller to operating position when the lrey is withdrawn "from the lock.

The invention is susceptible of many applications, and, when applied to an electric switch, the objects or the invention are accomplished by providing an electric switch with means such as s spring tending to move the movable contact or the switch to closed position, hey operated device for releasing the spring and a device which nerinits unlocking the switch, but prevents complete movement of the switch to closed position, solong es the key is in the lock, Conseguently when the hey is removed the switch will be automatically moved by the spring to closed oosition.

A further object of the invention is provide a combined switch and lock COKHPI'lS; ing separate unitary sub-assemblies one or which includes an operating member and lock therefor and the other of which includes the complete switch. When these sub-assemblies are joined together, the operating member ot the switch will be positioned for operation by the operating member of the controller.

A further object of the invention 1s to provide a unitary ignition coil, ignition circuit switch, controller for the switch sndloclr therefor including novel features such. as mentioned in the foregoing paragraphs.

Further objects and advantages of the pres ent invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a pre ferred form of embodiment of the present in- 'vention is clearly shown.

In the drawings:

Fig. 1 is a front view of a unitary loci: and switch constructed in accordance with the present invention, the rectangle drawn with dot and dash lines representing the instrument board to which the structure'may be attached.

Fig. 2 is a longitudinal sectional the line 22 of Fig. 1.

Fig. 3 is a view similar to Fig. 2 showing certain parts in positions (littering from the positions shown in Fig. 2. i

Fig. 4 is a sectional-view entire line 4-4 of Fig. 3.

Figs. 5 and 6 are sectional views taken respectively on the lines 5--5 and 66 of Figs 2.

The controller and lock therefor which comprises one of the unitary sub-assemblies of the structure shown in the drawings will first be described. This controller includes an operating member comprising an endwise movable member 20, and a cupped disc 21 carrying 21. metal stud 22 surrounded by e. non-conducting tube 23. As will sppearinore clearly hereinafter these parts to 23 con stitute the operating member or" the controller although the member 20 might bercferred to as the operating member, and the parts 22 and 23 collectively as means for transmitting motion from the operating member 20. The members 26 and 21 ere slidable within a tubular guide or bearing 24: which. together with a tubular outer jacket 25 and a plate 26 provides a case and support for the operating member and lock of the controller. The jacket 25 is provided with inwardly extending flange 2'? which engages a shoulder 28 of the guide 2st, and with s plurality of tangs 29 which extend through holes 30 in the plate 26 and arebent over as to secure the casing members 24:, 25 and 26 in assembled relation. A screw pin 31 extends through the members 25 and 24 order to prevent relative rotation between them. Rotation between members 20 and 24 is prevented by providing the member 20 with an elongated groove 32 which receives view on inafter. The operating member 20 is locked the inner end of a screw33 which is threaded into a tapped hole extending through the sidewall o the member 24.

A spring 40 tends to move the operating member 20 toward the left ortoward operating position as will appear more clearly herein non-operating position shown in Fig.2 by a bolt 41 which is adapted to enter a recess 42 in a side wall of the member 24. The bolt 41 is slidablewithin a recess 43 in the member 20 and is urged into locking osition by a spring 44. The operating mem er 20 carries a rotatable key barrel or cylinder 45 which can be turned only by the proper key indicated at 46 in Fig. 3. The mechanism for causing the bolt 41 to be withdrawn from the recess 42 when the key cylinder 45 is rotated has been omitted as illustration thereof trolleddevi'ce comprises av movable sto will be unnecessary to those skilled in the art. It will be understood, .however, that the parts 20, 24, 41, 44 and 45 are comprised in what is known to the trade as the automobile type cylinder lock. It will be understood that when the cylinder 45 is rotated by the key the bolt 41 will be withdrawn from the recess 42 thereb releasing the spring 40 in order to cause t e operating member 20 to be moved toward the left, until the-right hand end of the groove 32 enga es the inner end of the screw 33. After this movement.

automatically move the plunger 41 in locking position.

In order to compel the o erator of the controller to remove the key efore the operat ingmember 20 can be moved fully to operating position, means operated by the key are provided for preventing the full movement of the operating'member 20 toward the left or into operating position while permitting the .bolt 41 to be withdrawn from the recess 42, and while permitting the operating meniber 20 to be moved a limited amount so that the locking bolt 41 will be held in unlocked position by engagement with the interior Wall of the casing member 24. Th1s key cop;

. which is 'locatedwithin a'recess 51 provided in the right end ot the operating member 20. The stop sods attached .to the squared end of the shaft 51 whicliextends through and is rotatably' supported by the operating member 20. 1 The left-end or exposed end of the shaft 51 is also squareand is attached to a cover 52 for the key hole 53 of the cylinder 45. The cover 52 is maintained in position covering the key hole 53 as shown in Figs. 1 and 4 and the stop is maintained in position entirely within the periphery of the operating member 20 by a spring 54 having its intermediate ortion coiled around the shaft 51, one end earing against a pin 55 attached to member 20 and theother bearing against a side wall 56 of the cover 52. The spring 54 is biased so as to tend to move the cover 52 in a counter-clockwise direction as viewed in Fig. 4 and the movement of the cover is limited by engagement with the stop 55. \Vhen the key 46 is inserted in the key operated member or cylinder 45 the cover 52 will be moved from the full line position shown in Fig. 1 to the position 52 (indicated by dot and dash lines in Fig. 1) and the stop 50 will be moved from the full line position shown in Fig. 5 to the position 50 (indicated by dot and dash lines in Fig. 5). Therefore the inserting of the key 46 in the lock will cause the stop 50 to move into a recess 57 provided by cutting away a portion of the side wall of the casing member 24. The recess- 57 is of such Width relative to the thickness of the stop 50 as to permit movement of the operating member 20 from the position shown in Fig. 2 to that shown in Fig. 3, the cylinder 45 having been turned by the key 46 to withdraw the bolt 41 from the recess 42. Therefore, so long as the key 46 remains in the key cylinder 45 the operating member cannot move the full amount toward the left into operating position. When the key 46 is mal position as indicated in full lines in the drawings, thereby permitting thespring 40 to complete the movement of the operating member 20 toward the left oru'ntil the right hand end of the groove 32 engages the inner end of the screw 33.

While the controller'may be used to operate various sorts of mechanisms particularly for rendering someessential part of an. automobile operative or inoperative, the form of control which has been illustrated is particularly adapted for controlling an electric switch which may be included alone or with an ignition coil in a unitary subassembly which is adapted to be attached to the plate 26 formin a' part of the controller and lock sub-assem ly. I

The sub-assembly including the electric switch for an ignition coil will nowbe described- The ignition coil comprises a central magnetizable core 60 surrounded by secondary coil 61 and a primary coil 62. These coils are surrounded by an externalmagnetic circuit 63 and all of these parts are housed 'withina container which comprises a metal tube 64 attached to non-conducting end members 65 and 66. The member carries.

terminals 67 and 68 connected with the ends of the primary coil 62, respectively. The terminal 68 is connected with the outside end of the secondary winding 61 and its inside end is connected with a terminal 69. One of the turns of the primary winding 62 is cut to provide leads 70 and 71 which extend through hollow rivets 72 and 73, respectively, and are attached to switch contacts 74 and 75, respectively. The rivets 72 and 73 secure said contacts 74 and 75, respectively, to the member 66. Member 66 is provided with a recess 7 6 forreceiving a nonconducting tube 77 having diametrically opposite notches 78 and 79 for receiving; respectively, the inner ends of the switch contacts 74 and 75. The contacts 74 and 75 maintain thetube 77 within the recess 76; and, since the inner ends of these contacts fit somewhat snugly within the notches 78 and 79, rotation of the contacts 74 and 75 with respect to their attaching rivets 72 and 73, respectively, is prevented.

The stationary contacts 74 and 7.5 are adapted to be engaged by the outwardly extending flange 80 of a metallic, cup-shaped switch operating member 81 which is located within the tube 77. A spring 82 tends to urge the contact operating member 81 outwardly with respect to the recess 76 and its flange into engagement with the contacts 74 and 75. It is therefore apparent that these contacts will maintain the contact actuator '81 within the tube 77.

The non-conducting end member 66 is supported by a metallic coil housing end-member which isattached at 91 to the coil housing tube 64 and which is provided with an aperture through which a portion of the nonconducting member 66 extends as shown in Figs. 2 and 6. A case or support for the switch is provided by the members 66 and 90 and by a flanged collar 92 which is permanentl secured to the metal coil housing tube 64. he collar 92 has an outwardly extending flange 93 which is adapted to be secured to the plate 26 by rivets 94 and r vet studs 95. It is therefore apparent that the parts 66, 90, 92 and 26 will provide a housing for the switch. 1 1 g Like the controller and lock, the ignition coil and switch may be constructed as a separate sub-assembly; When the controller and lock sub-assembly is united to the switch sub assembly, the operating member of the controller will operatively engage the switch contact operating member. These subassemblies may be readily disassembled by shearing olf the riveted portions in case repairs or displacements of either sub-assembly are desired.

The studs 95 are provided with tapped holes 96 for receiving screws 97 by which the structure may be attached to the back of an instrument board 98.

The operation of the controller with respect to the switch will now be described. WVhen the controller is in locked position as shown in Fig. 2, the switch contact flange 80 is separated from the contacts 74 and 7 5, thereby breaking the circuit of the primary winding of the ignition coil. The flange 80 is spaced from the end wall of the recess 76 so as to permit complete movement of the operating member 20 to locking position while at the same time allowing for variations in manufacture. When the key 46 is inserted in the cylinder 45 and turned to with drawthe bolt 41 from the recess 42, the opcrating member 20 will be automatically moved by the spring 40 into the position shown in Fig. 3 wherein the locking bolt 41 is'held in retracted position. Due to the engagement of the stop 50 with the wall 57 defining the recess 57, movement of the operating member 20 is'arrested and hence the contact flange 80 cannot engage the switch contacts 74 and 75 while the key remains in theflock. This feature compels the car driver to withdraw the key from the lock in order to start the engine of the automobile. When this is done the stop 50 will automatically move away from the recess 57 as already described andthe spring 40 will be released to move the o crating member 20 further toward the le t so that the spring 82 may move the contact flange 80 into engagement with the contacts 74 and 75. When the operating member 20 has completed its full movement toward the left, and when the contact flange 80 has engaged the contacts 74 and 75 there will be a slight space between the right hand end of the non-conducting tube 23 and the left hand end of the contact actuator 81. In this way the closing of the switch is assured although there may be some slight variations in manufacture.

To open the switch the operator has but i to push in the operating member 20 until the bolt 41 is in alignment with the recess 42 whereupon the spring 44 will be released to maintain the operating member in nonoperating position and the switch in open position. I

One of the principal advantages of the present invention is that the operator is required to remove the key from the lock before the controller can be moved to operating position to render operative some essential part of the automobile such as the ignition apparatus. Another feature is that the controller may be moved and locked in non-operating position or the ignition switch in open position without the use of a key. As a result of these features the likelihood of a car driver leaving the key in the lock when leaving the car has been substantially eliminated. Another feature of the invention is that the controller is automatically moved to operating position to permit movement of the switch to on position when the key is removed from the look. No further manipulation by the operator is required to render the ignition apparatus operative.

While the form of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms 'might be adopted, all coming 7 within the scope of the claims which follow.

What is claimed is as follows:

1. An electric switch controller and lock therefor comprising, in combination, a unitary sub-assembly including an operating member, a lock therefor, and a support for the operating member and lock and including a mounting plate; a unitary sub-assembly including an ignition coil having a cylindrical housing and an ignition switch mounted on one of the coil housing end walls, and a flanged collar attached to the coil cylindrical housing and extending beyond the end wall carrying the switch; and means for securing the flange to said plate, said late and flange being adapted to provide a iousing for the switch, and to locate the switch operating member in operative relation to the first mentioned operating member.

2. A coil and circuit controller therefor comprising, in combination, a housing for the coil, a switch supported entirely by the housing upon the exterior of a wall thereof, and including a movable member; a key operated controller and supporting frame therefor independent of the coil housing; and means for securing the coil housing and controller frame together in such manner that the controller may operatively engage the switch movable member.

3. A coil and circuit "controller therefor comprising, in combination, a housing for the coil, a switch mounted wholly upon the exterior of a wall of the coil and having a member movable longitudinally of the coil; a key operated controller movable longitudinally, a frame wholly supporting the controller: and means for securing the housing and frame together in such a manner that the controller may impart longitudinal movement to the switch movable member.

4. A coil and circuit controller therefor comprising, in combination, a housing for the coil including a tubular side wall and a nonconducting end wall, a switch supported entirely upon the exterior of said end wall and including a movable contact, a key operated controller movable longitudinally of the coil, a frame wholly supporting the controller, and means for securing the frame and housing together in such manner that the controller will engage the switch movable member.

5. Apparatus according to claim 4, in which the coil ousing end wall has a recess for receiving the movable contact which is urged by a spring within the recess toward a stationary contact extending adjacent the recess.

6. Apparatus according to claim 4 in which the coil housing end wall has a recess for receiving a cup-shaped movable contact which receives one end of a coil spring bearing against the end wall of the recess for the purpose of urging the movable contact toward stationary contacts extending into the recess and engageable with an external annular flange provided by the movable contact.

In testimony whereof I hereto afiix my signature.

HARRY E. NORVIEL. 

